Three consecutive even integers add up to -6 what are they?

Mathematics

1 answer:

DanielleElmas [232]3 years ago

7 0

Answer:

I think this is the answer

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1+cos2A /1-cos2A=cotA.cotA

Allisa [31]

Answer:

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Step-by-step explanation:

$formulae \: to \: be \: used : \\ \cos 2 \theta = 2 { \cos}^{2} \theta - 1 \\ and \\ \cos 2 \theta = 1 - 2 { \cos}^{2} \theta \\ \\ now \: let \: us \: prove \: the \: given \: trigonometrical \: \\ identity. \\ \\ \frac{1 + \cos2A}{1 - \cos2A} = \cot \: A. \cot \: A \\ LHS = \frac{1 + \cos2A}{1 - \cos2A} \\ \\ = \frac{1 +2 { \cos}^{2} A- 1 }{1 - (1 - 2 { \sin}^{2} A)} \\ \\ = \frac{1 +2 { \cos}^{2} A- 1 }{1 - 1 + 2 { \sin}^{2} A} \\ \\ = \frac{2 { \cos}^{2} A }{2 { \sin}^{2} A} \\ \\ = \frac{{ \cos}^{2} A }{ { \sin}^{2} A} \\ \\ = { \cot}^{2} A \\ \\ = { \cot} A .{ \cot} A \\ \\ = RHS \\ \\ hence \: proved.$

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3 years ago

A farmer has an orchard that covers an area of 40 acres. He grows apples on 25 acres, peaches on 7 acres, nectarines on 5 acres,

ivanzaharov [21]

There are 25 acres of apple trees, and 40 acres total. Thus, the probability of him NOT finding an apple tree is 1 - (25/40) = 15/40 = 37.5% or the second choice.

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Multiply. Use an area model to illustrate each product. a) 2/3 and 15

NeX [460]

Answer:

Step-by-step explanation:

multiply 15 by the numerator (2) so you should have 30/3 then divide by the denominator (3) for an answer of 10

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3 years ago

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HELP! WILL MARK BRAINLIEST WITH A EXPLANATION!!!!please & thank u

mamaluj [8]

Answer:

The answer is A

Step-by-step explanation:

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3 years ago

I need help! 30 points! Will mark brainliest! I'm giving up my rank for this answer! Please!

Sedaia [141]

Answer: a = -3

Step-by-step explanation: First we distribute the -2 to a and -3 to get -2a+6=12, then subtract 6 on both sides, -2a=6, finally divide by -2 on each side to get a = -3.

Hope this helps!

Please consider marking BRAINLIEST!

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